Home / 8,485,139.32-12,728,459.88-2,419,742.68

Finding the Fourth Proportional to 8,485,139.32, 12,728,459.88 and 2,419,742.68

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Solution

The fourth proportional to 8,485,139.32, 12,728,459.88 and 2,419,742.68 is: 3,629,828.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,485,139.32 : 12,728,459.88 = 2,419,742.68 : x
  2. Step 2: Convert to fraction form
    8,485,139.32/12,728,459.88 = 2,419,742.68/x
  3. Step 3: Cross multiply
    8,485,139.32x = 12,728,459.88 × 2,419,742.68
  4. Step 4: Simplify right side
    8,485,139.32x = 30,799,597,622,303.68
  5. Step 5: Solve for x
    x = 30,799,597,622,303.68/8,485,139.32
  6. Step 6: Final answer
    x = 3,629,828.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.